1304.2067 (Tomasz Radozycki)

Relative variables of the exact fermion-antifermion bound state
wave-function in the Schwinger Model    [PDF]

Tomasz Radozycki

The exact Bethe-Salpeter amplitude for the fermion-antifermion bound state in the Schwinger Model is investigated. The dependence on the relative time and position in the center-of-mass frame in all contributing instanton sectors is analyzed. The same is accomplished for the relative energy and momentum variables. Several interesting properties of the amplitude are revealed. The explicit threshold structure is demonstrated.

View original: http://arxiv.org/abs/1304.2067